Jason and Marceline treats forthrightly some aspects of entering adolescence that may make some readers uneasy. It treats experimentation in drinking beer and relatively harmless sexual experimentation. It involves interracial dating when Peter Kim goes out with Jewel Fiorito. In Marceline McAllister, it presents a very selfassured, mature young woman. At times, her maturity contrasts markedly with the immaturity of Jason and some of his friends.